Sorry for the double post (this was posted in another thread) but I'm trying to find out what kind of kit this is, and approximate vintage -

The badges all say made in Japan.

Bass Drum is 18x22 model number 88522 CL
Floor Tom is 16x16 model number PT516 GK
Large rack Tom is 10x12 - actually has two badges - one looks like it's just stuc on, the other has numbers
Small Rack Tom is 8x10 model number TT510 GL
Snare is 6x14 model number SO255 (cant see the rest)

Hey there. I had a really similar kit and I sort of remember that it was a stage series. Late 80's sounds right too. It's strange that Yamaha didn't just print the models on there?!? What's the point of leaving it off? Mine was a birch/mahogany ply combination. Not sure if any of that was helpful.